Apparatus and method for making uniformly sized and shaped spheres
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United States of America Patent
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Jul 4, 2000
Issued Date -
N/A
app pub date -
Dec 16, 1998
filing date -
Jul 14, 1997
priority date (Note) -
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Abstract
Uniform sized and shaped spheres are formed by applying a minute periodic disturbance to a low viscosity liquid material. Pressure forces the material through at least one orifice in a crucible as a steady laminar stream. The stream enters an enclosed controlled temperature solidification environment which contains at least one heat transfer medium. A charging means is applied to the stream as the stream exits the crucible and breaks into a plurality of spheres to deflect the spheres as they pass through an electric field. The enclosed controlled temperature solidification environment cools and substantially solidifies the spheres.
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